Classic ASP - Declaring variables in File_1.asp absent in Include File

Question

I have declared a variable and it's value in the head of File_1.asp Before DOCTYPE html

<%
dim strCategory
strCategory="My String"
%>

Then I have an include file inserted in the body

<!--#include file="../_assets/includes/jumbotron.inc"-->

In the include file I loop through a recordset to compare the declared variable

<%
if objRS("fldCategory")=strCategory then
  strActive="active"
End If
%> 

But I get an error "Variable is undefined: 'strCategory'". The variable "strCategory" value must be assigned in File_1.asp so how do I use this variable in the "include" file?